After getting betrayed by her fiance Eliot and best friend Lucy and drowning of all things, Selena washes ashore in a fantastical world where pirates rule the sea.

At first she's content simply researching new fantastical creatures as she did before in her occupation as an marine biologist. But then Selena realises that this new world is far more familiar than it first seemed, the world of the book her best friend had written.

And Eliot has reincarnated as the sweet male lead based on him, fame and prestige at his fingertips. Like hell will Selena let that bastard live in luxury!

And she already knows how to make his life miserable. Making a deal with the villain and tearing the story to shreds.

[aka a revenge isekai x pirates x odyssee-ish, updates every 2-ish days]